http://imagej.273.s1.nabble.com/Grid-Counter-Histogram-tp5014772p5014788.html
Here is a suggestion for a much faster processing than creating ROI grids on black and white images.
Rescale your black and white image so that one pixel represents 0.1mm with interpolation.
Apply a threshold to match your condition (only pixels > 0, or some other value that represents the fraction of black color)
For having a per row counter, you can just navigate the whole length of the image like so
> -----Original Message-----
> From: ImageJ Interest Group [mailto:
[hidden email]] On Behalf Of
> tclift123
> Sent: Monday, October 26, 2015 16:55
> To:
[hidden email]
> Subject: Grid, Counter, Histogram
>
> I'm looking to make a macro for wax valve spreading. The problem is the lack
> of uniformity with the wax valve spread. The spread is further on the corners
> than in the center of the rectangular block. I'd like to see the furtherest
> distance that the wax traveled, but also see the distribution of the wax
> spread.
>
>
> Assuming my image is black and white, I'd like to create a grid of .1mm X .1
> mm squares along the area of the photo. If the squares have any black color,
> I'd like to store them in a recursive counter. I'd like to plot a histogram of the
> stored values along each row of the grid being one bin.
>
>
>
>
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